For those running a single mono speaker it is almost impossible to get deep bass from a 8" or smaller speaker. Using a small subwoofer solves the problem but defeats the portability of a single speaker. Just got the new EV Everse 12. Closest I have come to true full range sound in a single speaker! Before this I had and still own a QSC K10 and RCF TT10. Both have an incredible high end/no bass:(
Downside: Large speaker/31 lbs. Expensive at $1,000!
Pros: Excellent App(Best on Market!)/Bluetooth/battery power/loud-126dB/Robust EV construction and reputation.